package com.jshare.dao.Impl;

// default package

import java.sql.SQLException;
import java.sql.Timestamp;
import java.util.List;
import java.util.Set;

import org.hibernate.HibernateException;
import org.hibernate.LockMode;
import org.hibernate.Query;
import org.hibernate.Session;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.orm.hibernate3.HibernateCallback;
import org.springframework.orm.hibernate3.support.HibernateDaoSupport;

import com.jshare.dao.ArticleDAO;
import com.jshare.entity.Article;

/**
 * A data access object (DAO) providing persistence and search support for
 * Article entities. Transaction control of the save(), update() and delete()
 * operations can directly support Spring container-managed transactions or they
 * can be augmented to handle user-managed Spring transactions. Each of these
 * methods provides additional information for how to configure it for the
 * desired type of transaction control.
 * 
 * @see .Article
 * @author MyEclipse Persistence Tools
 */

public class ArticleDaoImpl extends HibernateDaoSupport implements ArticleDAO {
	private static final Logger log = LoggerFactory
			.getLogger(ArticleDaoImpl.class);

	protected void initDao() {
		// do nothing
	}

	/**
	 * 分页查询
	 * 
	 * @param hql
	 *            查询的条件
	 * @param offset
	 *            开始记录
	 * @param length
	 *            一次查询几条记录
	 * @return
	 */
	public List queryForPage(final String hql, final int offset,
			final int length) {
		List list = getHibernateTemplate().executeFind(new HibernateCallback() {
			public Object doInHibernate(Session session)
					throws HibernateException, SQLException {
				Query query = session.createQuery(hql);
				query.setFirstResult(offset);
				query.setMaxResults(length);
				List list = query.list();
				return list;
			}
		});
		return list;
	}

	/**
	 * 查询所有记录数
	 * 
	 * @return 总记录数
	 */
	public int getAllRowCount(String hql) {
		return getHibernateTemplate().find(hql).size();
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#save(com.jshare.entity.Article)
	 */
	public void save(Article transientInstance) {

		log.debug("deleting Article instance");
		try {
			getHibernateTemplate().save(transientInstance);
			log.debug("save successful");
		} catch (RuntimeException re) {
			log.error("save failed", re);
			throw re;
		}

		
		  log.debug("saving Article instance"); 
			  
		  final String sql="insert into ja_article values (2,?,?,?,?,?,?)";
		   Query query=getSession().createSQLQuery(sql);
		  query.setParameter(0,transientInstance.getTitle());
		  query.setParameter(1,transientInstance.getContent());
		  query.setParameter(2,transientInstance.getPostdate());
		  query.setParameter(3,transientInstance.getMember().getName());
		  query.setParameter(4,transientInstance.getArCategory().getId());
		  query.setParameter(5,transientInstance.getTags());
		  query.executeUpdate();
		 
		 

	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#delete(com.jshare.entity.Article)
	 */
	public void delete(Article persistentInstance) {
		log.debug("deleting Article instance");
		try {
			getHibernateTemplate().delete(persistentInstance);
			log.debug("delete successful");
		} catch (RuntimeException re) {
			log.error("delete failed", re);
			throw re;
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#findById(java.lang.Integer)
	 */
	public Article findById(java.lang.Integer id) {
		log.debug("getting Article instance with id: " + id);
		try {
			Article instance = (Article) getHibernateTemplate().get(
					Article.class, id);
			return instance;
		} catch (RuntimeException re) {
			log.error("get failed", re);
			throw re;
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see
	 * com.jshare.action.ArticleDAO#findByExample(com.jshare.entity.Article)
	 */
	public List findByExample(Article instance) {
		log.debug("finding Article instance by example");
		try {
			List results = getHibernateTemplate().findByExample(instance);
			log.debug("find by example successful, result size: "
					+ results.size());
			return results;
		} catch (RuntimeException re) {
			log.error("find by example failed", re);
			throw re;
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#findByProperty(java.lang.String,
	 * java.lang.Object)
	 */
	public List findByProperty(String propertyName, Object value) {
		log.debug("finding Article instance with property: " + propertyName
				+ ", value: " + value);
		try {
			String queryString = "from Article as model where model."
					+ propertyName + "= ?";
			return getHibernateTemplate().find(queryString, value);
		} catch (RuntimeException re) {
			log.error("find by property name failed", re);
			throw re;
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#findByTitle(java.lang.Object)
	 */
	public List findByTitle(Object title) {
		return findByProperty(TITLE, title);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#findByContent(java.lang.Object)
	 */
	public List findByContent(Object content) {
		return findByProperty(CONTENT, content);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#findByTags(java.lang.Object)
	 */
	public List findByTags(Object tags) {
		return findByProperty(TAGS, tags);
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#findAll()
	 */
	public List findAll() {
		log.debug("finding all Article instances");
		try {
			String queryString = "from Article";
			return getHibernateTemplate().find(queryString);
		} catch (RuntimeException re) {
			log.error("find all failed", re);
			throw re;
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#merge(com.jshare.entity.Article)
	 */
	public Article merge(Article detachedInstance) {
		log.debug("merging Article instance");
		try {
			Article result = (Article) getHibernateTemplate().merge(
					detachedInstance);
			log.debug("merge successful");
			return result;
		} catch (RuntimeException re) {
			log.error("merge failed", re);
			throw re;
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#attachDirty(com.jshare.entity.Article)
	 */
	public void attachDirty(Article instance) {
		log.debug("attaching dirty Article instance");
		try {
			getHibernateTemplate().saveOrUpdate(instance);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	/*
	 * (non-Javadoc)
	 * 
	 * @see com.jshare.action.ArticleDAO#attachClean(com.jshare.entity.Article)
	 */
	public void attachClean(Article instance) {
		log.debug("attaching clean Article instance");
		try {
			getHibernateTemplate().lock(instance, LockMode.NONE);
			log.debug("attach successful");
		} catch (RuntimeException re) {
			log.error("attach failed", re);
			throw re;
		}
	}

	public static ArticleDAO getFromApplicationContext(ApplicationContext ctx) {
		return (ArticleDAO) ctx.getBean("ArticleDAO");
	}

}